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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,133 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,235 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48.8M | 3,614 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,429 |
| 2K |
| — |
| 8 |
| AS397865US | MORTGAGE-RESEARCH-CENTER - Veterans United Home Loans | 2K | — | 6 |
| AS53324US | WILLARD-NET - LOCAL TV AND ELECTRONICS, INC. | 2K | — | 1 |
| AS11973US | SECUREINDEPENDENCE - Secure Independence, Inc | 2K | — | 1 |
| AS10868US | DOWNCITY - DownCity LLC | 2K | — | 1 |
| AS14417US | LANDSTAR - Landstar System Inc | 2K | — | 8 |
| AS396841US | VERTICAL-HORIZON-NET - Vertical Horizon Networks | 2K | 65.5K | 4 |
| AS393872US | MOTLOW - Motlow State Community College | 2K | — | 6 |
| AS393619US | UBX-DT1 - UBX Cloud | 2K | — | 5 |
| AS399455US | IP-ROUTING-01 - IP Routing LLC | 2K | — | 2 |
| AS36812US | MLL-61 - Master Lock Company LLC | 2K | — | 6 |
| AS26216US | INVISALINKWIRELESSMI - Invisalink Wireless | 2K | 65.5K | 9 |
| AS397028US | PREMIER-HOLDINGS-LLC - Premier Holdings, LLC. | 2K | — | 3 |
| AS27163US | INTERACTIVE-BROKERS-CORP - Interactive Brokers Corp | 2K | — | 6 |
| AS401944US | VORTEX WIRELESS INTERNET - Vortex Wireless Internet | 2K | — | 4 |
| AS13926US | NETPROTECT-PHX - Strong Technology, LLC. | 2K | 256 | 8 |
| AS36339US | SMART-CITY-SACC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 2K | 16 | 5 |
| AS14524US | SERCO-NA - SERCO NA | 2K | — | 7 |
| AS33707US | NUSHAGAK-ASN - Nushagak Electric & Telephone Cooperative, Inc. | 2K | — | 5 |
| AS400556US | LAGLESS-AS - Elcro Digital Services, LLC | 2K | 17 | 10 |
| AS398192US | ARDOT-NET-01 - Arkansas Department of Transportation | 2K | — | 5 |
| AS396284US | QSRGROUP - QSR GROUP LLC. | 2K | — | 8 |
| AS62938US | SKY-VALLEY-NETWORK-LLC - Sky Valley Network | 2K | — | 5 |
| AS14143US | RSINET-1 - Rock Solid Internet & Telephone | 2K | — | 1 |
| AS27392US | 639-DATACENTERS - 639 DC Main LLC | 2K | 3 | 11 |
| AS393780US | HYPER-ASNET - Hyper Networks LLC | 2K | — | 6 |
| AS394283US | BEACON-HEALTH-SYSTEM - Beacon Health System, Inc. | 2K | — | 2 |
| AS54905US | DIGITAL-LANDSCAPE - Digital Landscape, Inc. | 2K | — | 1 |
| AS14221US | UW-GR-AS - University of Washington | 2K | 256 | 2 |
| AS27240US | NETAS-STL - Netelligent Corporation | 2K | — | 8 |
| AS16501US | I2C-ASN - i2c Incorporated | 2K | — | 8 |
| AS14408US | AS-EMPIRECLS-SECAUCUS - Empire International, Ltd. | 2K | — | 8 |
| AS14959US | MODISPRO - Adecco USA Inc | 2K | — | 3 |
| AS33189US | SOUTH-DAKOTA-RESEARCH-AND-EDUCATION-NETWORK - South Dakota Board of Regents | 2K | 65.5K | 6 |
| AS16766US | ISLAND-TECHNOLOGY-INC - Island Technology, Inc. | 2K | — | 8 |
| AS395102US | YRMC-ASN - Yuma Regional Medical Center | 2K | — | 4 |
| AS29771US | EXPRESS-LLC-PUBLIC - Express LLC | 2K | — | 8 |
| AS393360US | TYLERTECH-NIC2 - Tyler Technologies, Inc. | 2K | — | 7 |
| AS20038US | ALLENTOWNSD - Allentown School District | 2K | — | 1 |
| AS11190US | SILCON - Silicon Connections, LLC. | 2K | — | 1 |
| AS47030US | SOUTHERNLINC-PACKETDATA-ASN - SouthernLINC Wireless | 2K | — | 8 |
| AS33213US | BASIN-NET - BASIN 2 WAY RADIO | 2K | — | 8 |
| AS22012US | REALOGY-MADISON - NRT Inc. | 2K | — | 5 |
| AS17162US | DONALDSON - Donaldson Company, Inc. | 2K | — | 1 |
| AS35967US | LAVATRADING-CITI01 - Citigroup Inc. | 2K | — | 8 |
| AS29893US | CHATANGO - Chatango LLC | 2K | — | 3 |
| AS53283US | LITWARE - Litware LLC | 2K | 65.5K | 10 |